It is a cool game. Originally I pirated it and made it all the way to the flashback scene or something of walking on a different planet but then the stuff in the install kept throwing virus alerts so I removed it.

Bought it again when on sale on Steam. Got maybe half way to where I was the last time but haven't come back to it in a while.

As far as getting stuck goes I found that when that happened to me I could usually save and quit and when I came back to it somehow I'd magically get unstuck.